A 27MHz Mixed Analog/digital Magnetic Recording Channel DSP Using Partial Response Signalling With Maximum Likelihood Detection

Most magnetic rigid-disk-drive recording channels to date have used continuous-time, analog "peak detect" approaches for signal detection. This IC uses sampled data detection with partial response class-IV (PR-IV) signaling and maximum likelihood (ML) sequence detection (PRML). Error rate...

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Main Authors: Schmerbeck, T.J., Richetta, R.A., Smith, L.D.
Format: Conference Proceeding
Language:English
Subjects:
Clocks
Digital magnetic recording
Digital signal processing
Logic circuits
Packaging
Power supplies
Switches
Switching circuits
Timing
Voltage-controlled oscillators
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creator Schmerbeck, T.J.
Richetta, R.A.
Smith, L.D.
description Most magnetic rigid-disk-drive recording channels to date have used continuous-time, analog "peak detect" approaches for signal detection. This IC uses sampled data detection with partial response class-IV (PR-IV) signaling and maximum likelihood (ML) sequence detection (PRML). Error rate performance on the drive is superior to that obtainable from previous peak-detect channels. PR-IV and ML have been used previously in communication channels as well as slow-speed floppy and tape drives; the theory is well known.
doi_str_mv 10.1109/ISSCC.1991.689096
format conference_proceeding
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identifier ISBN: 9780879426446
ispartof 1991 IEEE International Solid-State Circuits Conference. Digest of Technical Papers, 1991, p.136-304
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language eng
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Clocks
Digital magnetic recording
Digital signal processing
Logic circuits
Packaging
Power supplies
Switches
Switching circuits
Timing
Voltage-controlled oscillators
title A 27MHz Mixed Analog/digital Magnetic Recording Channel DSP Using Partial Response Signalling With Maximum Likelihood Detection
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